Donald "Doc" Gentry (d. 1986) is the husband of Bernadette Gentry, the father of Ralph Gentry and a younger son, and the father-in-law of Getrude Gentry and Ruth Gentry. He was a life-long Pittsburgh Pirates fan, and gave his youngest son a gold pocket watch as a wedding gift.

He suffered from pancreatic cancer until 1982, when he received a kiss from a mysterious seven-year-old girl named Ayana and made a miraculous revocovery. He ultimately choked to death on a piece of steak in 1986 while living in an assisted-living facility.